CVE-2025-1784
📋 TL;DR
This vulnerability allows authenticated attackers with Contributor-level access or higher to inject malicious scripts into WordPress pages using the Spectra plugin's uagb block. The scripts execute whenever users view the compromised pages, enabling session hijacking, credential theft, or redirection to malicious sites. All WordPress sites using Spectra plugin versions up to 2.19.0 are affected.
💻 Affected Systems
- Spectra – WordPress Gutenberg Blocks (Ultimate Addons for Gutenberg)
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator credentials, compromise user accounts, redirect visitors to malicious sites, or deface the website, potentially leading to complete site takeover and data breaches.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies, redirect users to phishing pages, or display unwanted advertisements, compromising user privacy and site integrity.
If Mitigated
With proper user role management and input validation, the impact is limited to low-privileged user accounts being compromised, with minimal effect on site functionality.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once an attacker has Contributor-level credentials.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.19.1 or later
Vendor Advisory: https://wordpress.org/plugins/ultimate-addons-for-gutenberg/#developers
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Spectra' or 'Ultimate Addons for Gutenberg'. 4. Click 'Update Now' if available. 5. Alternatively, download latest version from WordPress repository and manually update.
🔧 Temporary Workarounds
Temporarily disable Spectra plugin
allDisable the vulnerable plugin until patched, though this may break site functionality that depends on Spectra blocks.
wp plugin deactivate ultimate-addons-for-gutenberg
Restrict user roles
allTemporarily remove Contributor role access or limit who can create/edit posts.
🧯 If You Can't Patch
- Implement strict Content Security Policy (CSP) headers to limit script execution
- Use web application firewall (WAF) rules to block XSS payloads in POST requests
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for Spectra version. If version is 2.19.0 or lower, you are vulnerable.Check Version:
wp plugin get ultimate-addons-for-gutenberg --field=versionVerify Fix Applied:
After updating, verify Spectra plugin version is 2.19.1 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to wp-admin/post.php with script tags in content
- Multiple failed login attempts followed by successful Contributor login
Network Indicators:
- Outbound connections to suspicious domains from your WordPress site
- Unexpected JavaScript in page responses
SIEM Query:
source="wordpress.log" AND ("script" OR "javascript" OR "onclick") AND "POST /wp-admin/post.php"🔗 References
- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-gutenberg/tags/2.19.0/classes/class-uagb-init-blocks.php#L1276
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3243058%40ultimate-addons-for-gutenberg&new=3243058%40ultimate-addons-for-gutenberg&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9ac33fd5-602b-4810-96e1-850ea6ee739d?source=cve
